ET WEB_SPECIFIC_APPS Apache Tomcat Directory Protection Bypass via Rewrite Valve Directory Traversal Attempt (CVE-2025-55752)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Apache Tomcat Directory Protection Bypass via Rewrite Valve Directory Traversal Attempt (CVE-2025-55752)";
    flow:established,to_server;
    http.uri;
    pcre:"/^[^\x26]*?(?:(?:\x2e|%2[Ee]){1,2}(?:\x3b|\x253[bB])(?:\x2f|\x5c|%5[Cc]|%2[Ff]){1,})(?:META|WEB)/R";
    content:"-INF"; fast_pattern;
    reference:url,github.com/TAM-K592/CVE-2025-55752;
    reference:cve,2025-55752;
    classtype:attempted-admin;
    sid:2069336; rev:1;
    metadata:affected_product Apache_Tomcat, attack_target Web_Server, tls_state plaintext, created_at 2026_05_19, cve CVE_2025_55752, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_05_19, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)